Type-writing machine.



M. BRANCH TYPE WRIHNG MACHINE.

APPLICATION man AUG. $6, 1916.

1,225,5Q8, Patented May 8, 1917.

L91. i a

MICHAEL BRANCH, OF RICHMOND, VIRGINIA.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented May 8, 1917.

Application filed August 16, 1916. Serial No. 115,311.

To all whom it may concern:

Be it known that I, MICHAEL BRANCH, a citizen of the United States,residing at Richmond, in the county of Henrico and State of Virginia,have invented certain new and useful Improvements in Type- WVritingMachines, of which the following is a specification.

My invention relates to new and useful improvements in typewritingmachines.

My invention relates to improvements in means for guiding paper aroundthe revoluble cylindrical platens of a typewriting machine, so that thepaper may be written on close to the top and bottom edges and preventingthe paper from bulging.

Another object of my invention is to overcome this difficulty andprovide devices which may be readily applied to existing machines,especially those of the Underwood front strike type, which holds theentire top edge and the entire bottom edge of a sheet of paper againstthe platen.

A still further object of my invention is to provide a device of thischaracter which can be readily attached and detached and is simple inconstruction and having certain details of structure and operationhereinafter more fully described.

In the accompanying drawings Figure 1 is a front elevation of anUnderwood typewriting machine, showing my improvement applied thereto;

Fig. 2 is a transverse vertical sectional view taken on the line 2-2 ofFig. 1;

Fig. 3 is an enlarged perspective View illustrating the relation of thepaper clips to the several rods of the usual roller mechanism.

Referring now to the drawings, 1 represents the platen which is providedwith an axle 2 mounted in the frame 3, which is known as the platensupporting frame, and the said frame is supported by the movablecarriage, all of which is well understood and needs no furtherdescription. The platen frame is provided with a paper shelf 4:, in rearof the platen and carries the forwardly extending fingers 5 formingguides for the paper, as fully shown in Fig. 2 of the drawin 's.

TVI-ounted within the frame 3 are the front and rear pressure-rolls 6and 7, which bear against the platen 1 and hold the paper tightlyagainst the same. Carried by the frame 3 between the rollers (3 and 7 isa shaft 8 which carries the arms 9 in which is mounted the shaft 10,directly .below the shaft 9. These shafts 9 and 10 are for the purposeof supporting the springs 11 and other working parts, all of which iswell understood by those skilled in the art and needs no furtherdescription.

My improved paper guide consists of the plates 12 and 13, which areattached to the rods or shafts 9 and 10, one of the said plates servingthe same function as two of the guides now used on the Underwoodtypewriter, such as shown in Patent No. 888,328, and my improved guideplates also more firmly hold the paper tight on the platen.

The plate consists of a body portion 14, curved to correspond with theperiphery of the platen l and provided with a central cut-away portion15 around which the metal is struck up forming an outwardly extendingbeading 16 which strengthens the guide and allows it to be made of thinmaterial and at the same time gives the proper resiliency, so that theguide will closely hug the periphery of the platen. The end walls of thebody are straight, as indicated at 17 and 18 and are then beveledinwardly, as indicated at 19 and 20, to a point slightly below thebottom of the central cut-away portion 15. Extending from the beveledwalls 19 and 20 are the beveled walls 21 and 22 which extend in the samedirection; and, as shown in Fig. 2, are curved to correspond with theperiphery of the platen.

At the lower end of the beveled walls 21 and 22 the plate is formed witha looped portion 23 which is adapted to be sprung upon the shaft 9 ofthe frame 3 and the body portion 14 extends upwardly under the pressureroller 6 and bears against the platen roller and firmly clamps the paperthereon. Below the looped portion 28 the plate is bent outwardly at 25and extends on the outside of the shaft or rod 10. The pressure of thecurved portion on the rod 10 causes the looped portion to oscillate onthe rod 9 and normally hold the body portion 14 firmly against theplaten and such pressure is normally maintained so as to more firmlyhold the paper on the platen.

By this structure, it will be seen that the guide plates are readilyattached by forcing the looped portion 23 over the rod 9 and can also bereadily removed and are adapted to be applied tothe ordinary Underwoodtypewriter of the front strike type.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is: g

1. In a typewriting machine having a platen, the combination with threerods adjacent the platen, a guide plate having a looped central portionto receive the center rod and having the upper end curved to pass underthe upper rod and bear against the platen, and the other end engagingthe outer face of the lower bar.

2. In a typewriting machine having a platen, the combination with. threerods adjacent the platen, of a metal guide plate supported by the centerrod, and having one end passing under the upper bar and the opposite endon theoutside of the lower bar.

In testimony whereof I aflix my signature in the presence of twowitnesses.

MICHAEL BRANCH.

IVitnesses S. H. EVANS, J. G. REITZEL.

Copies 01. this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, I). C.

